Answer:21
Step-by-step explanation: If the formula I've used was right. All you had to do was use the percentage of the children who liked science more which is 35% and change it into a decimal like 0.35 and multiply that with 60 and your answer is 21!
What do you mean I’m confused
Answer:
x=21
Step-by-step explanation:
Following the vertical angles, we can assume that the equation that has x and 87 are equal to each other. From then, you set them equal to each other and solve for x.
87=4x+3
84=4x subtract 3 from both sides
21=x divide by 4 to get the x alone on both sides
Answer:
28
Step-by-step explanation:
a³+b³= (a+b)³ - 3ab(a+b)
= 4³ -3×3×4 = 64-36 = 28
<span>A a real-world situation that can be modeled by y equals 3 to the power of t is the production of a bacteria culture. Let us say that y is the number of bacteria and that t is number of hours. So you can say that a bacteria, y, will multiply at t hours.
b. If the equation was changed to y equals 2 open parentheses 3 close parentheses to the power of t then it would produce double the original value of the number of bacteria because of the presence of 2 times 3 to the t.
c. If the equation were rewritten in the form y equals b open parentheses 1 plus r close parentheses to the power of t, the value of r will be known if all the other variables such as b, y and t. If these variables are unknown, then you cannot solve for the value of r.</span>